Title:
RADIAL AND AXIAL COMBINED SENSOR FOR MAGNETIC BEARING
Document Type and Number:
WIPO Patent Application WO/2020/125105
Kind Code:
A1
Abstract:
Disclosed is a radial and axial combined sensor for a magnetic bearing. The combined sensor comprises a rotor (1), a rotor collar (2) and displacement sensors (3), wherein the rotor (1) and the rotor collar (2) are made of materials with different conductivities; the tail end of the rotor (1) is provided with a boss part (11), the rotor collar (2) is sleeved on the boss part (11), and the rotor collar (2) is in interference fit with the boss part (11); a fitting seam at the joint between the rotor collar (2) and the boss part (11) forms a base line (A); an even number of displacement sensors (3) are uniformly distributed in a circumferential direction of the rotor (1), and the displacement sensors (3) are located on an inner side of the boss part (11); and a detection face of the displacement sensors (3) is arranged coaxially with the base line (A). According to the combined sensor, a radial displacement sensor is omitted, such that the structure of a bearing is simple, space is saved, the axial dimensions of the rotor are reduced, and the natural frequency of the rotor is improved.
Inventors:
LIN YINGZHE (CN)
SHI CHENLIAN (CN)
WU LIHUA (CN)
DONG JIYONG (CN)
SHI CHENLIAN (CN)
WU LIHUA (CN)
DONG JIYONG (CN)
Application Number:
PCT/CN2019/106744
Publication Date:
June 25, 2020
Filing Date:
September 19, 2019
Export Citation:
Assignee:
NANJING CIGU LTD CORP (CN)
International Classes:
F16C32/04; F16C41/00; G01B21/06
Foreign References:
| CN209430623U | 2019-09-24 | |||
| CN109505875A | 2019-03-22 | |||
| CN209371993U | 2019-09-10 | |||
| CN109458919A | 2019-03-12 | |||
| CN207719985U | 2018-08-10 | |||
| CN107968530A | 2018-04-27 | |||
| CN205300548U | 2016-06-08 | |||
| CN107979239A | 2018-05-01 | |||
| CN207719986U | 2018-08-10 | |||
| CN1818539A | 2006-08-16 | |||
| CN104201935A | 2014-12-10 | |||
| CN205592183U | 2016-09-21 | |||
| JP2017032384A | 2017-02-09 |
Attorney, Agent or Firm:
NANJING RUIZHIBO INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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